我厂在试制浆纱机时,有一批带凹凸圆弧面的零件,精度为IT7～8。过去加工凹凸圆弧面,一般用整体式的平体成形车刀、棱体成形车刀及圆体成形车刀.由于这些刀具不但制造复杂加工成本高,而且我厂没有光学曲线磨床,刀具成形圆弧面的精度靠修正砂轮难以得到保证。为此笔者设计了一种结构简单、使用可靠、高精度的可换刀片平体成形圆弧车刀。结构如图1所示,刀片1插在刀体3的凹槽内,用螺钉2锁 I plant in the pilot sizing machine, a number of parts with concave and convex arcuate surface, the accuracy of IT7 ~ 8. In the past processing of concave and convex arc surface, the general use of flat body forming a complete turning, prism forming turning and round body forming turning tools.Because these tools not only create complex high-cost processing, and I plant without optical curve grinder, tool forming The precision of arc surface can not be guaranteed by the modified grinding wheel. To this end, I designed a simple structure, the use of reliable, high precision can be replaced by blade flat body forming arc lathe. The structure is shown in FIG. 1, the blade 1 is inserted in the groove of the cutter body 3 and locked with the screw 2